Answers
Answer:
Step-by-step explanation:
hello :
P(2 ; 6) and Q(-6 ; -8)
the midpoint of segment PQ is : H ( (2-6)/2 ; (6-8)/2)
H(-4/2 ; -2/2)
H(-2 ; -1)
Related Questions
A bus comes by every 12 minutes. The times from when a person arrives at the bus stop until the bus arrives follows a uniform distribution from 0 to 12 minutes. A person arrives at the bus stop at a randomly selected time. Round to 4 decimal places where possible.
a) What is the mean of this distribution?
b) What is the standard deviation?
c) What is the probability that the person will wait more than 5 minutes?
d) Suppose that the person has already been waiting for 2.8 minutes. Find the probability that the person's total waiting time will be between 3.4 and 5.7 minutes.
e) 10% of all customers wait at least how long for the train?
Answers
Answer:
a. The mean of uniform distribution is (a+b)/2, where a and b are limits of the uniform distribution. So, mean is (0+12)/2 = 6 minutes
b. Standard deviation is (a-b)^2/12 = (0-12)^2/12 = (-12^2)/12 = 144/12 = 12
c. Prob (Wait for more than 5 min) = (12-5)/(12-0) = 7/12 = 0.5833
d. So, given he has waited for 2.8 minutes, what is prob that he will wait between 3.4 and 5.7 minutes
= (5.7 - 3.4) / ((12-2.8) - 0)
= (5.7 - 3.4) / (9.2 - 0)
= 2.3/9.2
= 0.25
e. 10% of all customers wait at least how long for the train?
10% of all customers wait for?
Since its a uniform distribution, people are uniformly spread. So, the 10% of people will be in the top 10% percentile group of waiting time which essentially means:
0.10 = (12-b)/(12-0)
0.10 = (12-b)/12
1.2 = 12 - b
b = 12 - 1.2
b = 10.8 minutes
So, 10% of all customers wait for at least 10.8 minutes for the train.
need help will give extra points! and brainly thing
Answers
Answer:
I think c tell if wrong ok
Answer:
They are continuous relations
Select the statement that best justifies the conclusion based on the given information.
Ifx+5 = 15, then x=10.
O addition property of equality
O subtraction property of equality
multiplication property of equality
O substitution
Answers
Answer:
B.
Subtraction property of equality.
Six more than three times a number w.
An expression for this phase is..?
(Please help)
Answers
Answer:6+3w
Step-by-step explanation:
So, our number is "W"
SO, 6 more than three times w is
6+3w
Three times w=3w
Then, it says 6 more, so we add 6
Answer:
What! :) - (-() (--(
Step-by-step explanation:
MI no sabo perdon my amigo
Pythagorean Theorem: word problem:
Anita is admiring a statute in Morristown Park. The statute is 16 feet taller than she is, and Anita is standing 12 feet away. How far is it from the top of the statute to Anita's head? in feet
Answers
Answer:
20 Feet away
sqrt((a*a)+(b*b))
• Water tank A has 220 gallons of water and is being drained at a constant rate of 5 gallons per minute.
• Water tank B has 180 gallons of water and is being drained at a constant rate of 3 gallons per minute.
Part
How much time, in minutes, do water tank A and water tank B have to be drained in order for them to have the same amount of water?
Answers
Answer: In 20 minutes, tanks A and B will each have 120 gallons remaining in them.
Step-by-step explanation:
The equation, the amount at which they will be equal, represents the given starting amounts minus the gal/min times the unknown time in minutes, m.
220 - 5m = 180 - 3m Subtract 180 from both sides; add 5m to both sides.
220-180 -5m +5m = 180-180 +5m - 3m Combine like terms
40 = 2m Divide both sides by 2
20 = m
Check: Substitute 20 for m in the equation
220 - 5(20) = 180 - 3(20)
220 - 100 = 180 -60
120 = 120 True!
I need a step by step explanation please
Answers
HELP I SOO BAD AT THIS HEEELLLLLPPPP!!!
Answers
Answer:
9 and 7
Step-by-step explanation:
Simplify 24÷⌈32÷(8−5)⌉−(−6)
Answers
QUICK SOMEONE HELP!! I’LL MARK BRAINLIEST
Answers
Answer:
A - 152
Step-by-step explanation:
You see the box on the right triangle, meaning it is 90.
Add 90 + 62 to get 152, so the angle is 152.
Brooke gets 6 heads when flipping a weighted coin 8 times. Based on experimental probability, how many of the next 20 flips should Brooke expect to come up heads?
? heads
Answers
10 I would say
Unless 18 one of those
simplified form of ( (2^-2) )^-3 x ( (2^-3) )^2
Answers
Answer:
( (2^-2) )^-3 x ( (2^-3) )^2
((1/2²)^-3×(1/2³)²
1/(1/4)³×(1/8)²
4³×1/8²
64/64
1
A boy purchased (bought) a party-length sandwich 55 in. long. He wants to cut it into three pieces so that the middle piece is 5 in. longer than the shortest piece and the shortest piece is 8 in. shorter than the longest piece. How long should the three pieces be?
Shortest piece has a length of _____ in.
Middle piece has a length of ___ in
Longest piece has a length of ____ in.
Answers
Answer:
the shortest piece has a length of 8 in, the middle piece would have a length of 60 longest would be 63
Step-by-step explanation:
looked it up on Chegg it was already asked and answered by a expert tutor
Write the numerator of a fraction equivalent to 3/4 that has a denominator of 20
Answers
Answer:
15
Step-by-step explanation:
Cross multiply
3 times 20 = 60
4 times x = 4x
now your left with
60= 4x
divide 4 on both sides
15 = x
The numerator of a fraction equivalent to 3/4 that has a denominator of 20 is 15.
A fraction is made up of a numerator and a denominator. Examples of fraction are: [tex]\frac{3}{4} , \frac{1}{2}[/tex]. The numerators are 3 and 1. The denominators are 4 and 2.
In order to determine the numerator, we have to determine the relationship between the two denominators given ( 20 and 4). 20 is a multiple of 4. 20 / 4 = 5. The second step is to multiply 3 by 5 = 3 x 5 = 15.
To learn more about fractions, please check:
https://brainly.com/question/21449807?referrer=searchResults
please help braineist
Answers
Answer:
44
Step-by-step explanation:
5x8=40+4=44
The graph represents which system of inequalities?
Oys-3x - 1
y = -x - 4
Oy2-3x + 1
y s -x - 4
Oys 3x - 1
ys-X + 4
Oys 3x - 1
y = -x + 4
Answers
Answer:
y ≤ 3x - 1y ≥ - x + 4Step-by-step explanation:
On the graph we have:
Line f(x)f(x) is rising function, y-intercept is -1, slope is 3 which is determined by the points - (0, -1) and (1, 2)Zone B is to the right of the line and the line is solidAs per description above we get inequality:
y ≤ 3x - 1Line g(x)g(x) is decreasing function, y-intercept is 4, slope is -1 which is determined by same x-intercept and y-interceptZone A is to the right of the line and the line is solidAs per description above we get inequality:
y ≥ - x + 4Zone AB is the intersection of the two zones, so the system is:
y ≤ 3x - 1y ≥ - x + 4You invested $26,000 in two accounts paying 2% and 3% annual interest, respectively. If the total interest earned for the year was $730, how much was invested at each rate?
Answers
Answer:
You invested $22,000 in two accounts paying 3% and 5% annual interest, respectively. If the total interest earned for the year was $980, how much was invested at each rate?
Step-by-step explanation:
let x=amt invested at 3% rate of interest.
22000-x=amt invested at 5% rate of interest.
.03x+.05(22000-x)=980
.03x+1100-.05x=980
.02x=120
x=6000
22000-x=16000
amt invested at 3% rate of interest=$6,000
amt invested at 5% rate of interest=$16,000
Hope iit help you mark as BrainlistThe amount invested in the account that yields 3% interest is $21,000 and the amount invested in the account that yields 2% interest is $5000
This can be solved using simultaneous equations. Two equations can be derived from the question :
a + b = 26,000 equation 1
0.02a + 0.03b = 730 equation 2
Where
a = amount invested in the account that yields a 2% interest
b = amount invested in the account that yields a 3% interest
Multiply equation 1 by 0.02
0.02a + 0.02b = 520 equation 3
Subtract equation 3 from equation 2
0.01b = 210
Divide both sides of the equation by 0.01
b = 210 / 0.01 = 21,000
Substitute for b in equation 1
a + 21,000 = 26,000
a = 26,000 - 21,000
a = 5000
To learn more about simultaneous equations, please check : https://brainly.com/question/15165519?referrer=searchResults
The base of the isosceles triangle is parallel to x -axis and has
both end-points on the parabola [tex]y =x(10-x)[/tex]and its vertex
belongs to the x -axis. Find area of the triangle if the length of its
base is 8.
Answers
Answer:
36 square units
Step-by-step explanation:
y = x(10-x)
This is a down-opening parabola with axis of symmetry x = 5
Vertex of triangle (5,0)
Base of triangle is the horizontal chord of length 8, endpoints x = (1,9) and (9,9).
Height of triangle = 9
Area of triangle = ½·8·9 = 36 square units
solve for x x+1/8=8
x=
Answers
Answer:
x=63/8
The decimal form is: x=7.875
Choose all the factors of 12. (Check all that apply.)
1
5
8
7
6
3
12
11
4
2
10
9
Answers
what is 6 1/3-5 2/3 plz answer quick
Answers
Covert them improper fractions by multiplying the whole number by the denominator and then add the product so you end up with
19/3 - 17/3= 2/3
Answer=2/3
A basketball game is 40 minutes long. Carter plays
5
8
of a basketball game. To calculate how many minutes Carter played, find an equivalent fraction to
5
8
with a denominator of 40. Select the correct calculation.
A.
5
×
8
8
×
8
=
40
64
; 64 minutes
B.
5
×
8
8
×
5
=
40
40
; 40 minutes
C.
5
×
5
8
×
5
=
25
40
; 25 minutes
D.
5
×
4
8
×
5
=
20
40
; 20 minutes
Answers
Answer:
B.
Step-by-step explanation:
If you want the denominator to be 40, you need a multiple which can make 40, just do 40 ÷ 8 = 5.
Answer:
C. 25 minutes
Step-by-step explanation:
[tex]\frac{5}{8} * \frac{5}{5} = \frac{25}{40}[/tex]
You can multiply the top and bottom both by 5
Which of these is equal to 35 (8 – 3)? A. (35 + 8) – (35 + 3) B. (35 × 8 ) + (35 × 3) C. (35 × 8) – (35 × 3) D. (35 × 11)
Answers
The equivalent of the expression, 35 (8 – 3) is (35 × 8 ) - (35 × 3). The answer is C.(35 × 8) – (35 × 3)
How to simplify an expression?An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation.
Therefore, let's simplify the expression to the its' equivalent as follows:
Hence,
35 (8 – 3) = 35(5) = 175
Therefore, the equivalent is as follows:
35 (8 – 3)
Open the bracket by multiplying as follows;
35 (8 – 3) = (35 × 8 ) - (35 × 3)
The correct option is C. (35 × 8) – (35 × 3)
learn more on expression here: https://brainly.com/question/111385
#SPJ6
solve the inequality and graph the solution on the line provided. 3x-15>-21
Answers
Answer: x>-2
Step-by-step explanation:
Answer: x<−2
Step-by-step explanation:
3x-15>-21
3x<15-21
3x<-6
3x/3<-6/3
x<-2
The answer is x<-2
Hope it helps
select the expression that is NOT equivalent to 35p+25
A 5(5+3p+4p)
B 5(15p+5+20p)
C 5(5+7p)
D 5(4p+3p+5)
Answers
A) 5(5 + 3p + 4p)
= 25 + 15p + 20p
= 35p + 25
B) 5(15p + 5 + 20p)
= 75p + 25 + 100p
= 175p + 25
C) 5(5 + 7p)
= 35p + 25
D) 5(4p + 3p + 5)
= 20p + 15p + 25
= 35p + 25
So, in conclusion, option B is incorrect because it does not equal to: 35p + 25 whereas all the other options do.
Michael goes to the bank and puts $6000 in a savings account. He earns a simple interest of 3.5% If he leaves the money in the account for 2 years, what is the total amount in the account after the two years?
Answers
9514 1404 393
Answer:
$6420
Step-by-step explanation:
The account value can be found using the formula ...
A = P(1 +rt)
where P is the initial deposit, r is the annual rate, and t is the number of years.
A = $6000(1 + .035×2) = $6000(1.07) = $6420
The total amount after 2 years is $6420.
Carlos has 38 apples.He puts 8 into each bag.If he fills many bags as possible ,how many apples are left?
answer choices:
6
5
4
2
Answers
answer: 6
******90 POINTS!!*****
Subtract 1/2h -1 from 3/4 h +4
A.1/4h+3
B.-1/4+5
C.1/4h+5
D.-1/4h+5
Help me plz
Answers
1/2(n-5)=1/2(23-5) I cannot find what’s half of 23-5
Answers
Answer:
n = 23
Step-by-step explanation:
if 1/2 (n-5) = 1/2 (23-5)
that must mean that n=23.
and if you are just looking for 1/2 of 23-5 that is just 9. (23-5) = 18 and half of 18 is 9
solving for JL. And I'm using pythagorean theorem. If possible I would like an explanation.
Answers
Answer: 21.4
Step-by-step explanation:
13² + 17² = C²
169 + 289 = C²
458 = C²
√458 = C
C = 21.4
